Cremona's table of elliptic curves

20400 = 2⁴ · 3 · 5² · 17

Field	Data	Notes
Atkin-Lehner	2+ 3+ 5- 17-	Signs for the Atkin-Lehner involutions
Class	20400q	Isogeny class
Conductor	20400	Conductor
∏ cp	8	Product of Tamagawa factors cp
deg	4608	Modular degree for the optimal curve
Δ	-249696000 = -1 · 28 · 33 · 53 · 172	Discriminant
Eigenvalues	2+ 3+ 5-  0 -2  0 17-  4	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-68,-768]	[a1,a2,a3,a4,a6]
Generators	[28:136:1]	Generators of the group modulo torsion
j	-1102736/7803	j-invariant
L	4.1818441010076	L(r)(E,1)/r!
Ω	0.73633632593925	Real period
R	2.8396290891077	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	10200bp1 81600jo1 61200cd1 20400bl1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 20400q1

a2	a3	a5	a7	a11	a13	a17	a19	a23	a29	a31	a37	a41	a43	a47	a53	a59	a61	a67	a71	a73	a79	a83	a89	a97
+	+	-	0	-2	0	-	4	0	-8	4	-2	0	-2	8	-2	-4	10	10	6	-10	-16	12	-6	-10

---

Quadratic twists for elliptic curve 20400q1

-4	8	-3	5
10200bp1	81600jo1	61200cd1	20400bl1

---

Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

Part of Computational Number Theory
Back to Tables and computations